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J CQG BK 0315 Highlights-A4-4.Indd INVITED Strings, branes, supergravity Constraining conformal field ARTICLE theories with a slightly broken Classical and and gauge theory higher spin symmetry Juan Maldacena and Alexander Zhiboedov FTC Quantum Gravity Quantum supersymmetric cosmology 2013 Class. Quantum Grav. 30 104003 and its hidden Kac-Moody structure “Determines the leading form of the correlation functions in the CFT dual for a large class of higher spin theories, using only very general properties of the T Damour and P Spindel theory. The resulting form of the correlation functions is highly constrained. Highlights of 2013–2014 2013 Class. Quantum Grav. 30 162001 These universal results will likely play an important part in the development of “This is a an elegant paper, where ingredients such as supersymmetry, group holographic duality for higher spin.” Comment from Editorial Board theory, fundamental physics, the early universe and lateral comments to other areas come together in a highly technical article that is brief but very Welcome to the 2015 CQG Highlights brochure, featuring some of the best papers informative. This work shows how quantum cosmology without supersymmetry cannot be ignored.” Comment from Editorial Board Holography without strings? published during the last 12 months, as selected by our Editorial Board. 14% Donald3.6 Marolf As the centenary of Albert Einstein’s discovery of general relativity, 2015 will be an 2014 Class. Quantum Grav. 31 015008 exciting year for the CQG community. To mark this occasion, CQG will publish a special 12% TOPICAL Double field theory: REVIEW “Emphasizes the role of the gravitational Gauus law constraint and issue of the journal entitled ‘Milestones of General Relativity’, which will review some of a pedagogical review entanglement3.4 in the bulk in holography. The discussion of Reeh-Schlieder 10% sheds an interesting new light on the reconstruction of bulk observables from the most important developments in the history of gravitational physics. You can also Gerardo Aldazabal, Diego Marqués and Carmen Núñez boundary correlators.” Comment from Editorial Board watch for the full scientific output of the Gravity Probe B mission, which will appear in 20138% Class. Quantum Grav. 30 163001 CQG in 2015. 3.2 “Double6% field theory is a field theory formulated in a configuration space with The last 12 months have been very eventful for the journal. CQG’s new companion twice the number of coordinates which incorporates T-duality in a natural FOCUS Relativistic effects in cosmology ISSUE website, CQG+ (at cqgplus.com) has generated some considerable interest. Papers way.4% It is a growing area or research and this paper provides a timely review from the basics of DFT until recent topics like its connection with gauged Guest3.0 Editors Kazuya Koyama featured on CQG+ are among the most read in the journal. It’s a great place to learn supergravity theories and flux compactifications. It is written in a very clear Upcoming galaxy surveys will probe the large-scale structures of the Universe about your peers in the community and their work in an informal setting. CQG+ has also way2% and it is very useful for beginners as well as experienced researchers in the IMPACT FACTOR on ever larger scales with ever greater precision. These surveys also probe published movie reviews, interviews, details of prizes sponsored by CQG and other news. area.” Comment from Editorial Board 0% galaxies2.8 at higher redshifts when the Hubble scale is smaller and general * Go to CQG+ and follow the site to receive instant notifications of this new and varied 2009 2010 2011 2012 2013 relativistic (GR)2007 effects become2008 more 2009important. This2010 focus issue2011 contains2012 3.103 content. a selection of articles by the authors who pioneered the development in our *As listed in the 2013 ISI Journal understanding of general relativistic effects in cosmological observations. Citation Reports® CQG made the headlines this year with the publication of a paper co-written by Kip Thorne Submissions to CQG (papers) and the visual effects team who worked on Christopher Nolan’s Interstellar. The paper More popular than ever, CQG experienced a record Focus issues can be found at details how the images of Interstellar’s black hole was created, and is freely number of regular paper submissions in 2014. iopscience.org/0264-9381/page/Focus issues available to read in CQG. Interstellar went on to win an Oscar® for best visual effects. 1000 950 Clifford M Will Editor-in-Chief, Classical and Quantum Gravity 900 850 800 The Bergmann-Wheeler Thesis Prize 750 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 This prize, sponsored by Classical and Quantum Gravity, is awarded every three years by the International Society on General Relativity and Gravitation (ISGRG) for the best PhD thesis in quantum gravity. It is named after 2 great pioneers of quantum gravity: John Wheeler and Peter Bergmann. The winner of the prize will receive $1800 and a certificate. The next prize will be awarded at the GR21 meeting in New York City in 2016. To be considered, nominations must be received by 30 September 2015. Guidelines for the nomination are available at isgrg.org Past recipients are: 2013 Aron C Wall, thesis institution: University of Maryland 2010 Victor Taveras, thesis institution: Pennsylvania State University Gary Horowitz President, International Society on General Relativity and Gravitation 8 Classical and Quantum Gravity: Highlights 2013–2014 iopscience.org/cqg iopscience.org/cqg Classical and Quantum Gravity: Highlights 2013–2014 1 Black holes Relativistic astrophysics Quantum gravity Hamiltonian treatment of linear field theories in the presence of boundaries: Instability of black holes in FTC Stability of charged solitons and formation A discrete, unitary, causal theory of a geometric approach massive gravity of boson stars in five-dimensional anti-de quantum gravity Fernando Barbero G, Jorge Prieto, Eduardo J S Villasenor 2014 Class. Quantum Grav. 31 045021 Eugeny Babichev and Alessandro Fabbri Sitter spacetime Aron Wall 2013 Class. Quantum Grav. 30 152001 “This paper presents a rigorous treatment of the scalar and electromagnetic Y Brihaye et al 2013 Class. Quantum Grav. 30 115002 fields in the presence of boundaries in the Hamiltonian framework. The work “Vainstein screening has played important roles in recent 2013 Class. Quantum Grav. 30 115009 “This paper shows the kind of structures need to provide a discrete and causal is based on the implementation of the geometric constraint algorithm of developments of alternative gravity theories and their applications “This paper finds a number of interesting new results for solitons and boson model of quantum gravity.” Comment from Editorial Board Gotay, Nester and Hinds. The geometric approach implemented in this paper to cosmology and astrophysics. This article is a very elegant review stars in AdS spacetime, showing that boson stars in asymptotic AdS can have provides important insights on the role of the boundaries and identification of of the subject.” Comment from Editorial Board arbitrarily large charge and mass (in contrast to the situation in asymptotically the physical degrees of freedom.” Comment from Editorial Board flat space) as well as a mass/charge gap for these kinds of solutions.” The Renormalisation group and Weyl Comment from Editorial Board The generalized second law implies Invariance Entanglement and quantum gravity FOCUS a quantum singularity theorem ISSUE A Codello, G D'Odorico, C Pagani and R Percacci Guest Editors: Eugenio Bianchi and Carlo Rovelli Dynamic and thermodynamic stability of 2013 Class. Quantum Grav. 30 115015 Aron C Wall Quantum gravity alone is not the only major theoretical open problem in 2013 Class. Quantum Grav. 30 165003 relativistic perfect fluid stars “This paper gives a modern particle physics interpretation of a very classical fundamental physics: gravity, quantum theory and thermodynamics form geometric idea due to Hermann Weyl. While Weyl’s idea in its original form was “Interesting singularity theorem where there are regions where the a triple, whose full interconnections we have definitely not yet understood. Stephen R Green, Joshua S Schiffrin, Robert M Wald not experimentally viable, it led to modern gauge theories. This paper looks semiclassical approximation is valid and using arguments based on As soon as quantum effects appear in a curved spacetime, thermal aspects 2014 Class. Quantum Grav. 31 035023 at the matter from the modern perspective of the renormalisation group and the generalized second law. A new concept of quantum trapped appear to be unavoidable. Combining thermodynamics and (full) gravity trace anomalies.” Comment from Editorial Board surface is also introduced.” Comment from Editorial Board “This paper provides a unified and comprehensive analysis of dynamic and might turn out to be even more crucial than understanding the quantum thermodynamic stability of self-gravitating perfect fluids in General Relativity aspects of the gravitational field alone. In recent years, it has become using Lagrangian methods.” Comment from Editorial Board increasingly clear that entanglement entropy is a central ingredient for the What happens at the horizon(s) of an A gravitational entropy proposal synthesis we are seeking. extreme black hole? Recent years have seen a flourishing of interest in the role that entanglement Astrophysics and general relativity FOCUS Timothy Clifton, George F R Ellis and Reza Tavakol entropy plays in the physics of spacetime.
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